# A new three-dimensional open-framework iron(III) phosphate, $[C_2N_2H_{10}][Fe_2(HPO_4)_4]$

Choudhury, Amitava and Natarajan, Srinivasan (2000) A new three-dimensional open-framework iron(III) phosphate, $[C_2N_2H_{10}][Fe_2(HPO_4)_4]$. In: International Journal of Inorganic Materials, 2 (2-3). pp. 217-223.

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## Abstract

A new open-framework iron(III) phosphate, I, $[C_2N_2H_{10}][Fe_2(HPO_4)_4]$ has been hydrothermally synthesized in the presence of ethylenediamine (en). The structure is built up from the vertex linkages between the $FeO_6$ octahedra and the $PO_4$ tetrahedra, strictly alternating, forming the three-dimensional architecture. The linkages between the $FeO_6$ and $PO_4$ polyhedra gives rise to ladder-like edge-shared chains, which are connected variously forming two types of channels. The di-protonated en molecules occupy these channels. Crystal data for I, $[C_2N_2H_{10}] [Fe_2P_4O_{16}]$: a = 9.341(1), b = 8.892(1), $c = 9.480(1) \AA$, $\beta = 117.6(1)^o$, $V = 698.1(1) \AA^3$, space group P2/n (No. 13), Z = 2, M = 557.7, $D_{calc} = 2.65 g cm^{-3}$, $MoK\alpha (\lambda = 0.71073 \AA)$, $R_1 = 0.03$, $wR_2 = 0.08$ and S = 1.10. Magnetic susceptibility studies indicate a predominantly antiferromagnetic interaction with $T_N = 30 K$.

Item Type: Journal Article Copyright of this article belongs to Elsevier. Inorganic compounds;magnetic materials;chemical synthesis;X-ray diffraction. Division of Chemical Sciences > Solid State & Structural Chemistry Unit 23 Jul 2008 19 Sep 2010 04:48 http://eprints.iisc.ernet.in/id/eprint/15215